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author | Roberto Ierusalimschy <roberto@inf.puc-rio.br> | 2021-08-11 11:19:33 -0300 |
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committer | Roberto Ierusalimschy <roberto@inf.puc-rio.br> | 2021-08-11 11:19:33 -0300 |
commit | 59acd79c05b78950fe03279d60b015aeed5348ab (patch) | |
tree | afcfc5473099ee36e77ef6a2907345e18ca86ddc | |
parent | e2c07dcbf7492e79e5825a6ca66d28e2e372f71e (diff) | |
download | lua-github-59acd79c05b78950fe03279d60b015aeed5348ab.tar.gz |
Added tests for string reuse by the scanner
-rw-r--r-- | testes/errors.lua | 2 | ||||
-rw-r--r-- | testes/literals.lua | 24 |
2 files changed, 25 insertions, 1 deletions
diff --git a/testes/errors.lua b/testes/errors.lua index a7dc479a..55bdab82 100644 --- a/testes/errors.lua +++ b/testes/errors.lua @@ -241,7 +241,7 @@ do -- named objects (field '__name') assert(o == x) return "ABC" end}) - a, b, c = T.testC("pushint 10; Ltolstring -2; return 3", x) + local a, b, c = T.testC("pushint 10; Ltolstring -2; return 3", x) assert(a == x and b == 10 and c == "ABC") end end diff --git a/testes/literals.lua b/testes/literals.lua index e101eabf..d5a769ed 100644 --- a/testes/literals.lua +++ b/testes/literals.lua @@ -208,6 +208,30 @@ a = nil b = nil +do -- reuse of long strings + + -- get the address of a string + local function getadd (s) return string.format("%p", s) end + + local s1 <const> = "01234567890123456789012345678901234567890123456789" + local s2 <const> = "01234567890123456789012345678901234567890123456789" + local s3 = "01234567890123456789012345678901234567890123456789" + local function foo() return s1 end + local function foo1() return s3 end + local function foo2() + return "01234567890123456789012345678901234567890123456789" + end + local a1 = getadd(s1) + assert(a1 == getadd(s2)) + assert(a1 == getadd(foo())) + assert(a1 == getadd(foo1())) + assert(a1 == getadd(foo2())) + + local sd = "0123456789" .. "0123456789012345678901234567890123456789" + assert(sd == s1 and getadd(sd) ~= a1) +end + + -- testing line ends prog = [[ a = 1 -- a comment |